From dc66a78e3712f1840de05507548f607c916b1c78 Mon Sep 17 00:00:00 2001
From: Brian Underwood <brian@brian-underwood.codes>
Date: Fri, 22 May 2020 10:59:26 +0200
Subject: [PATCH] Don't double-encode in urlsafe_base64

I tried using this function and the results were longer than they should have been.  This was because it was encoding to standard base64 and then re-encoding *that* to URL-safe base64.  This change fixes that
---
 lib/secure_random.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/secure_random.ex b/lib/secure_random.ex
index 62d4864..f7963ec 100644
--- a/lib/secure_random.ex
+++ b/lib/secure_random.ex
@@ -70,7 +70,7 @@ defmodule SecureRandom do
 
   """
   def urlsafe_base64(n \\ @default_length) do
-    base64(n)
+    random_bytes(n)
     |> Base.url_encode64(case: :lower, padding: true)
   end